Summary

This chapter delved into the intricacies of infrastructure security, focusing on the design and implementation of secure VPCs in AWS. We began by discussing the importance of VPCs and their role in AWS security, highlighting the shift from on-premises traditional physical networking to SDN in the cloud. Then, we explored the key components of a VPC and best practices for designing secure VPCs, emphasizing the importance of subnet segregation, separate VPCs for different environments, and proper route table configuration. After, we discussed the effective implementation of security groups, NACLs, and AWS Network Firewall, clarifying their roles, interactions, and guidelines for their appropriate use in building a strong security posture for your VPCs. Finally, we focused on the use of AWS Shield and AWS WAF, which both provide advanced protection for your VPC resources.

Having covered network-related access management in the VPC, the next chapter will take us deeper into...